Alert archive / South Dakota / Snow Advisories in 2007
Snow Advisory 7, NWS Sioux Falls, SD
NWS Sioux Falls, SD issued this snow advisory at Nov 30, 2007, 3:54 PM CST for 9 counties in South Dakota. It took effect at Dec 1, 2007, 6:00 AM CST. It was in force for 9 hr.
The area
The counties it named.
The facts
- Issued
- Nov 30, 2007, 3:54 PM CST (21:54 UTC)
- In effect from
- Dec 1, 2007, 6:00 AM CST
- Expired
- Dec 1, 2007, 3:16 PM CST
- In force
- 9 hr
- Issued by
- NWS Sioux Falls, SD
Counties Aurora County, SD, Beadle County, SD, Brule County, SD, Charles Mix County, SD, Davison County, SD, Douglas County, SD, Gregory County, SD, Jerauld County, SD, Sanborn County, SD
The radar
The Sioux Falls radar (KFSD), 147 km from the middle of the area, began a volume at 21:54 UTC, the scan nearest the moment this went out.
Open the radar archive at this moment
The archived warnings, watches and discussions in force at that minute are drawn over the scan, this one among them.
The nearest sounding before it
Aberdeen, SD (KABR), launched 12:00Z, 9.9 hours before the alert went out and 133 km from the middle of its area. This is the routine balloon launch nearest before it, the air the forecaster had in hand, not a measurement taken for the alert.
- Mixed-layer CAPE
- 0 J/kg
- Mixed-layer CIN
- No buoyant parcel
- Mixed-layer LCL
- 1016 m above ground
- 0-6 km bulk shear
- 57 kt
- 0-1 km storm-relative helicity
- -47 m²/s²
- 0-3 km storm-relative helicity
- -18 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted, in the capitals the NWS used until 2016.
000 WWUS43 KFSD 302154 WSWFSD URGENT - WINTER WEATHER MESSAGE NATIONAL WEATHER SERVICE SIOUX FALLS SD 354 PM CST FRI NOV 30 2007 .STRONG UPPER LEVEL LOW PRESSURE WILL MOVE INTO THE SOUTHWESTERN UNITED STATES...WHICH WILL ALLOW AN ABUNDANCE OF MOISTURE TO STREAM NORTH INTO THE NORTHERN AND CENTRAL PLAINS TONIGHT. THE UPPER LEVEL LOW WILL APPROACH ON SATURDAY AND WITH COLD AIR NEAR THE SURFACE AND WARM AIR EXPECTED TO MOVE IN ALOFT...SNOW...FREEZING RAIN AND SLEET WILL ALL BE POSSIBLE. PRECIPITATION RATES ARE EXPECTED TO BE HIGH AT TIMES...SO VERY HAZARDOUS TRAVELING CONDITIONS ARE ANTICIPATED. THE BEST CHANCE FOR A SIGNIFICANT ICY MIX WILL BE FROM AROUND LAKE ANDES THROUGH SIOUX FALLS...BERESFORD AND CANTON TO AROUND JACKSON MINNESOTA AND SPENCER IOWA. AREAS AROUND SIOUX CITY TO STORM LAKE COULD BRIEFLY CHANGE OVER TO RAIN AROUND THE MIDDLE OF SATURDAY AFTERNOON. IAZ020>022-031-032-NEZ013-014-SDZ068>071-010600- /O.UPG.KFSD.WS.A.0006.071201T1200Z-071202T0600Z/ /O.NEW.KFSD.WS.W.0004.071201T1200Z-071202T0000Z/ PLYMOUTH-CHEROKEE-BUENA VISTA-WOODBURY-IDA-DIXON-DAKOTA-BON HOMME- YANKTON-CLAY-UNION- INCLUDING THE CITIES OF...LE MARS...CHEROKEE...STORM LAKE... SIOUX CITY...IDA GROVE...HOLSTEIN...BATTLE CREEK...WAKEFIELD... PONCA...ALLEN...SOUTH SIOUX CITY...TYNDALL...SCOTLAND... SPRINGFIELD...AVON...TABOR...YANKTON...VERMILLION... NORTH SIOUX CITY...BERESFORD...ELK POINT...ALCESTER...JEFFERSON 354 PM CST FRI NOV 30 2007 ...WINTER STORM WARNING IN EFFECT FROM 6 AM TO 6 PM CST SATURDAY... THE NATIONAL WEATHER SERVICE IN SIOUX FALLS HAS ISSUED A WINTER STORM WARNING...WHICH IS IN EFFECT FROM 6 AM TO 6 PM CST SATURDAY. THE WINTER STORM WATCH IS NO LONGER IN EFFECT. SNOW WILL DEVELOP LATE TONIGHT AND EARLY SATURDAY MORNING...BECOMING MODERATE TO OCCASIONALLY HEAVY AT TIMES IN THE MORNING. SNOW WILL MIX WITH SLEET TOWARDS NOON...AND THEN CHANGE TO FREEZING RAIN DURING THE AFTERNOON. FROM SIOUX CITY TO STORM LAKE...PRECIPITATION COULD CHANGE TO RAIN LATER IN THE AFTERNOON AS TEMPERATURES CLIMB INTO THE MID 30S. COLD AIR WILL BEGIN TO FILTER BACK IN SATURDAY NIGHT...WITH SNOW AGAIN BECOMING THE MORE LIKELY PRECIPITATION TYPE...ALTHOUGH AMOUNTS ARE EXPECTED TO BE MUCH LIGHTER. SNOW AND SLEET TOTALS SHOULD BE FROM ABOUT 2 TO 4 INCHES WHILE FREEZING RAIN COULD ACCUMULATE TO AROUND A THIRD OF AN INCH. EAST TO SOUTHEAST WINDS OF 20 TO 30 MPH ARE ALSO EXPECTED. A WINTER STORM WARNING MEANS SIGNIFICANT AMOUNTS OF SNOW... SLEET...AND ICE ARE EXPECTED OR OCCURRING. STRONG WINDS ARE ALSO POSSIBLE. THIS WILL MAKE TRAVEL VERY HAZARDOUS OR IMPOSSIBLE. $$ IAZ001>003-012>014-MNZ089-090-098-SDZ060>062-065>067-010600- /O.UPG.KFSD.WS.A.0006.071201T1200Z-071202T1200Z/ /O.NEW.KFSD.WS.W.0004.071201T1200Z-071202T0300Z/ LYON-OSCEOLA-DICKINSON-SIOUX-OBRIEN-CLAY-NOBLES-JACKSON-ROCK- HANSON-MCCOOK-MINNEHAHA-HUTCHINSON-TURNER-LINCOLN- INCLUDING THE CITIES OF...ROCK RAPIDS...GEORGE...INWOOD... LARCHWOOD...SIBLEY...SPIRIT LAKE...MILFORD...ARNOLDS PARK... ORANGE CITY...SIOUX CENTER...SHELDON...HARTLEY...SANBORN... SPENCER...WORTHINGTON...JACKSON...LAKEFIELD...LUVERNE... ALEXANDRIA...EMERY...SALEM...CANISTOTA...BRIDGEWATER...MONTROSE... SIOUX FALLS...PARKSTON...FREEMAN...MENNO...TRIPP...PARKER... CENTERVILLE...MARION...VIBORG...HURLEY...CHANCELLOR...CANTON... LENNOX...TEA...HARRISBURG 354 PM CST FRI NOV 30 2007 ...WINTER STORM WARNING IN EFFECT FROM 6 AM TO 9 PM CST SATURDAY... THE NATIONAL WEATHER SERVICE IN SIOUX FALLS HAS ISSUED A WINTER STORM WARNING...WHICH IS IN EFFECT FROM 6 AM TO 9 PM CST SATURDAY. THE WINTER STORM WATCH IS NO LONGER IN EFFECT. SNOW WILL DEVELOP EARLY SATURDAY MORNING...BECOMING MODERATE TO OCCASIONALLY HEAVY AT TIMES. SNOW WILL MIX WITH SLEET AND FREEZING RAIN DURING THE AFTERNOON. PRECIPITATION WILL CHANGE BACK TO SNOW DURING THE EARLY EVENING. SNOW AND SLEET TOTALS SHOULD BE FROM ABOUT 3 TO 6 INCHES WHILE FREEZING RAIN COULD ACCUMULATE FROM A TENTH TO A QUARTER OF AN INCH. EAST TO SOUTHEAST WINDS OF 20 TO 30 MPH ARE ALSO EXPECTED. A WINTER STORM WARNING MEANS SIGNIFICANT AMOUNTS OF SNOW... SLEET...AND ICE ARE EXPECTED OR OCCURRING. STRONG WINDS ARE ALSO POSSIBLE. THIS WILL MAKE TRAVEL VERY HAZARDOUS OR IMPOSSIBLE. $$ MNZ071-072-080-081-097-SDZ039-040-054>056-010600- /O.UPG.KFSD.WS.A.0006.071201T1200Z-071202T1200Z/ /O.NEW.KFSD.WS.W.0004.071201T1500Z-071202T0600Z/ LINCOLN-LYON-MURRAY-COTTONWOOD-PIPESTONE-KINGSBURY-BROOKINGS- MINER-LAKE-MOODY- INCLUDING THE CITIES OF...TYLER...HENDRICKS...LAKE BENTON... IVANHOE...MARSHALL...SLAYTON...FULDA...WINDOM...MOUNTAIN LAKE... PIPESTONE...DE SMET...ARLINGTON...LAKE PRESTON...BROOKINGS... HOWARD...MADISON...FLANDREAU 354 PM CST FRI NOV 30 2007 ...WINTER STORM WARNING IN EFFECT FROM 9 AM SATURDAY TO MIDNIGHT CST SATURDAY NIGHT... THE NATIONAL WEATHER SERVICE IN SIOUX FALLS HAS ISSUED A WINTER STORM WARNING...WHICH IS IN EFFECT FROM 9 AM SATURDAY TO MIDNIGHT CST SATURDAY NIGHT. THE WINTER STORM WATCH IS NO LONGER IN EFFECT. SNOW WILL DEVELOP ON SATURDAY MORNING...BECOMING MODERATE TO OCCASIONALLY HEAVY AT TIMES. BY ABOUT MID AFTERNOON...A MIX OF SLEET AND SNOW IS LIKELY. THERE MAY ALSO BE A BRIEF PERIOD OF FREEZING RAIN SOUTH OF HIGHWAY 34 IN SOUTH DAKOTA AND HIGHWAY 30 IN MINNESOTA. THE HEAVIEST SNOW SHOULD END BY LATE SATURDAY EVENING. SNOW AND SLEET TOTALS SHOULD BE FROM ABOUT 6 TO 10 INCHES WITH ICE ACCUMULATION OF A TENTH OF AN INCH OR LESS. EAST TO SOUTHEAST WINDS OF 20 TO 30 MPH ARE ALSO EXPECTED. A WINTER STORM WARNING MEANS SIGNIFICANT AMOUNTS OF SNOW... SLEET...AND ICE ARE EXPECTED OR OCCURRING. STRONG WINDS ARE ALSO POSSIBLE. THIS WILL MAKE TRAVEL VERY HAZARDOUS OR IMPOSSIBLE. $$ SDZ050-052-057-058-063-064-010600- /O.UPG.KFSD.WS.A.0006.071201T1200Z-071202T0600Z/ /O.NEW.KFSD.SN.Y.0007.071201T1200Z-071202T0000Z/ GREGORY-JERAULD-BRULE-AURORA-CHARLES MIX-DOUGLAS- INCLUDING THE CITIES OF...GREGORY...BURKE...WESSINGTON SPRINGS... ALPENA...CHAMBERLAIN...KIMBALL...PLANKINTON...WHITE LAKE... STICKNEY...WAGNER...PLATTE...LAKE ANDES...MARTY...ARMOUR... CORSICA...DELMONT 354 PM CST FRI NOV 30 2007 ...SNOW ADVISORY IN EFFECT FROM 6 AM TO 6 PM CST SATURDAY... THE NATIONAL WEATHER SERVICE IN SIOUX FALLS HAS ISSUED A SNOW ADVISORY...WHICH IS IN EFFECT FROM 6 AM TO 6 PM CST SATURDAY. THE WINTER STORM WATCH IS NO LONGER IN EFFECT. SNOW WILL DEVELOP EARLY ON SATURDAY MORNING...THEN CHANGE TO A MIX OF FREEZING RAIN AND SLEET BY LATE MORNING...ESPECIALLY SOUTH OF A GREGORY TO LAKE ANDES LINE. THE HEAVIEST PRECIPITATION SHOULD MOVE EAST BY LATE AFTERNOON...LEAVING BEHIND 3 TO 5 INCHES OF SNOW AND SLEET AND A TENTH OF AN INCH OF ICE. A SNOW ADVISORY MEANS THAT PERIODS OF SNOW WILL CAUSE PRIMARILY TRAVEL DIFFICULTIES. BE PREPARED FOR SNOW COVERED ROADS AND LIMITED VISIBILITIES...AND USE CAUTION WHILE DRIVING. $$ SDZ038-053-059-010600- /O.UPG.KFSD.WS.A.0006.071201T1200Z-071202T1200Z/ /O.NEW.KFSD.SN.Y.0007.071201T1500Z-071202T0300Z/ BEADLE-SANBORN-DAVISON- INCLUDING THE CITIES OF...HURON...WOONSOCKET...MITCHELL 354 PM CST FRI NOV 30 2007 ...SNOW ADVISORY IN EFFECT FROM 9 AM TO 9 PM CST SATURDAY... THE NATIONAL WEATHER SERVICE IN SIOUX FALLS HAS ISSUED A SNOW ADVISORY...WHICH IS IN EFFECT FROM 9 AM TO 9 PM CST SATURDAY. THE WINTER STORM WATCH IS NO LONGER IN EFFECT. SNOW WILL DEVELOP ON SATURDAY MORNING...THEN CONTINUE THROUGH EARLY SATURDAY EVENING. THREE TO SIX INCHES OF ACCUMULATION IS EXPECTED BY EVENING. AN EAST TO SOUTHEAST WIND OF 20 TO 30 MPH IS ALSO EXPECTED. A SNOW ADVISORY MEANS THAT PERIODS OF SNOW WILL CAUSE PRIMARILY TRAVEL DIFFICULTIES. BE PREPARED FOR SNOW COVERED ROADS AND LIMITED VISIBILITIES...AND USE CAUTION WHILE DRIVING. $$ 08
3 follow-up statements
000 WWUS43 KFSD 011000 WSWFSD URGENT - WINTER WEATHER MESSAGE NATIONAL WEATHER SERVICE SIOUX FALLS SD 400 AM CST SAT DEC 1 2007 ...MAJOR WINTER STORM FOR THE NORTHERN AND CENTRAL PLAINS TODAY... .A LOW PRESSURE SYSTEM WILL EXIT COLORADO THIS MORNING AND MOVE ACROSS NEBRASKA DURING THE AFTERNOON. AHEAD OF THE LOW...PRECIPITATION WILL RAPIDLY DEVELOP THIS MORNING...PRODUCING A WIDESPREAD AREA OF WINTRY PRECIPITATION...INCLUDING HEAVY SNOW AND FREEZING RAIN. THIS WILL MAKE TRAVEL EXTREMELY DIFFICULT IF NOT IMPOSSIBLE OVER MUCH OF THE REGION. PRECIPITATION WILL TAPER OFF THIS EVENING AS LOW PRESSURE QUICKLY MOVES EAST ACROSS IOWA. PRECIPITATION WILL END BY SUNDAY MORNING AS LOW PRESSURE MOVES INTO THE GREAT LAKES REGION... HOWEVER...NORTHWEST WINDS OF 15 TO 30 MPH WILL PRODUCE AREAS OF BLOWING AND DRIFTING SNOW. SDZ038-053-059-011800- /O.UPG.KFSD.SN.Y.0007.071201T1500Z-071202T0300Z/ /O.EXA.KFSD.WS.W.0004.071201T1200Z-071202T0300Z/ BEADLE-SANBORN-DAVISON- INCLUDING THE CITIES OF...HURON...WOONSOCKET...MITCHELL 400 AM CST SAT DEC 1 2007 ...WINTER STORM WARNING IN EFFECT UNTIL 9 PM CST THIS EVENING... THE NATIONAL WEATHER SERVICE IN SIOUX FALLS HAS ISSUED A WINTER STORM WARNING...WHICH IS IN EFFECT UNTIL 9 PM CST THIS EVENING. THE SNOW ADVISORY IS NO LONGER IN EFFECT. SNOW WILL RAPIDLY DEVELOP EARLY THIS MORNING AND CONTINUE INTO THE AFTERNOON BEFORE BEGINNING TO TAPER OFF EARLY THIS EVENING. SNOW MAY BECOME HEAVY AT TIMES...REDUCING VISIBILITIES AND MAKING TRAVEL VERY DIFFICULT. 4 TO 8 INCHES OF SNOW INCHES CAN BE EXPECTED BY LATE THIS AFTERNOON. LITTLE IF ANY ADDITIONAL SNOW ACCUMULATION IS EXPECTED DURING THE EVENING HOURS. ALTHOUGH THE WINTER STORM WARNING WILL EXPIRE AT 9 PM THIS EVENING...NORTHWEST WINDS WILL INCREASE TO 15 TO 25 MPH SUNDAY...PRODUCING BLOWING AND A WINTER STORM WARNING MEANS SIGNIFICANT AMOUNTS OF SNOW... SLEET...AND ICE ARE EXPECTED OR OCCURRING. STRONG WINDS ARE ALSO POSSIBLE. THIS WILL MAKE TRAVEL VERY HAZARDOUS OR IMPOSSIBLE. $$ MNZ071-072-080-081-097-SDZ039-040-054>056-011800- /O.EXT.KFSD.WS.W.0004.071201T1200Z-071202T0600Z/ LINCOLN-LYON-MURRAY-COTTONWOOD-PIPESTONE-KINGSBURY-BROOKINGS- MINER-LAKE-MOODY- INCLUDING THE CITIES OF...TYLER...HENDRICKS...LAKE BENTON... IVANHOE...MARSHALL...SLAYTON...FULDA...WINDOM...MOUNTAIN LAKE... PIPESTONE...DE SMET...ARLINGTON...LAKE PRESTON...BROOKINGS... HOWARD...MADISON...FLANDREAU 400 AM CST SAT DEC 1 2007 ...WINTER STORM WARNING NOW IN EFFECT UNTIL MIDNIGHT CST TONIGHT... THE WINTER STORM WARNING IS NOW IN EFFECT UNTIL MIDNIGHT CST TONIGHT. SNOW WILL RAPIDLY DEVELOP THIS MORNING...BECOMING MODERATE TO OCCASIONALLY HEAVY AT TIMES. BY MID AFTERNOON...A MIX OF SLEET AND SNOW IS LIKELY. THERE MAY ALSO BE A BRIEF PERIOD OF FREEZING RAIN SOUTH OF HIGHWAY 34 IN SOUTH DAKOTA AND HIGHWAY 30 IN MINNESOTA. THE HEAVIEST SNOW SHOULD END BY LATE SATURDAY EVENING. TOTAL SNOW AND SLEET ACCUMULATION OF 6 TO 10 INCHES IS EXPECTED...WITH ANY ICE ACCUMULATION LESS THAN ONE TENTH OF AN INCH. EAST TO SOUTHEAST WINDS OF 20 TO 30 MPH ARE ALSO EXPECTED THROUGH THE AFTERNOON...PRODUCING AREAS BLOWING AND DRIFTING SNOW. A WINTER STORM WARNING MEANS SIGNIFICANT AMOUNTS OF SNOW... SLEET...AND ICE ARE EXPECTED OR OCCURRING. STRONG WINDS ARE ALSO POSSIBLE. THIS WILL MAKE TRAVEL VERY HAZARDOUS OR IMPOSSIBLE. $$ IAZ020>022-031-032-NEZ013-014-SDZ068>071-011800- /O.CON.KFSD.WS.W.0004.071201T1200Z-071202T0000Z/ PLYMOUTH-CHEROKEE-BUENA VISTA-WOODBURY-IDA-DIXON-DAKOTA-BON HOMME- YANKTON-CLAY-UNION- INCLUDING THE CITIES OF...LE MARS...CHEROKEE...STORM LAKE... SIOUX CITY...IDA GROVE...HOLSTEIN...BATTLE CREEK...WAKEFIELD... PONCA...ALLEN...SOUTH SIOUX CITY...TYNDALL...SCOTLAND... SPRINGFIELD...AVON...TABOR...YANKTON...VERMILLION... NORTH SIOUX CITY...BERESFORD...ELK POINT...ALCESTER...JEFFERSON 400 AM CST SAT DEC 1 2007 ...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 6 PM CST THIS AFTERNOON... A WINTER STORM WARNING REMAINS IN EFFECT UNTIL 6 PM CST THIS AFTERNOON. SNOW WILL RAPIDLY DEVELOP THIS MORNING...BECOMING MODERATE TO OCCASIONALLY HEAVY AT TIMES IN THE MORNING. SNOW WILL BEGIN TO MIX WITH SLEET AND THEN EVENTUALLY CHANGE TO FREEZING RAIN THROUGH THE MORNING HOURS. FROM SIOUX CITY TO STORM LAKE...PRECIPITATION WILL LIKELY CHANCE TO RAIN BY MID AFTERNOON WITH TEMPERATURES CLIMBING INTO THE MID 30S. COLD AIR WILL BEGIN TO FILTER BACK IN SATURDAY NIGHT...WITH SNOW AGAIN BECOMING THE MORE LIKELY PRECIPITATION TYPE...ALTHOUGH AMOUNTS ARE EXPECTED TO BE MUCH LIGHTER. SNOW AND SLEET TOTALS ARE EXPECTED TO RANGE FROM 2 TO 4 INCHES WITH FREEZING RAIN ACCUMULATIONS OF BETWEEN A QUARTER AND A HALF INCH. EAST TO SOUTHEAST WINDS OF 15 TO 25 MPH ARE ALSO EXPECTED THROUGH THE AFTERNOON. A WINTER STORM WARNING MEANS SIGNIFICANT AMOUNTS OF SNOW... SLEET...AND ICE ARE EXPECTED OR OCCURRING. STRONG WINDS ARE ALSO POSSIBLE. THIS WILL MAKE TRAVEL VERY HAZARDOUS OR IMPOSSIBLE. $$ IAZ001>003-012>014-MNZ089-090-098-SDZ060>062-065>067-011800- /O.CON.KFSD.WS.W.0004.071201T1200Z-071202T0300Z/ LYON-OSCEOLA-DICKINSON-SIOUX-OBRIEN-CLAY-NOBLES-JACKSON-ROCK- HANSON-MCCOOK-MINNEHAHA-HUTCHINSON-TURNER-LINCOLN- INCLUDING THE CITIES OF...ROCK RAPIDS...GEORGE...INWOOD... LARCHWOOD...SIBLEY...SPIRIT LAKE...MILFORD...ARNOLDS PARK... ORANGE CITY...SIOUX CENTER...SHELDON...HARTLEY...SANBORN... SPENCER...WORTHINGTON...JACKSON...LAKEFIELD...LUVERNE... ALEXANDRIA...EMERY...SALEM...CANISTOTA...BRIDGEWATER...MONTROSE... SIOUX FALLS...PARKSTON...FREEMAN...MENNO...TRIPP...PARKER... CENTERVILLE...MARION...VIBORG...HURLEY...CHANCELLOR...CANTON... LENNOX...TEA...HARRISBURG 400 AM CST SAT DEC 1 2007 ...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 9 PM CST THIS EVENING... A WINTER STORM WARNING REMAINS IN EFFECT UNTIL 9 PM CST THIS EVENING. SNOW WILL RAPIDLY DEVELOP EARLY THIS MORNING...BECOMING MODERATE TO OCCASIONALLY HEAVY AT TIMES. SNOW WILL MIX WITH SLEET AND FREEZING RAIN DURING THE AFTERNOON. PRECIPITATION WILL CHANGE BACK TO SNOW DURING THE EARLY EVENING. SNOW AND SLEET TOTALS SHOULD BE FROM ABOUT 3 TO 6 INCHES WHILE FREEZING RAIN COULD ACCUMULATE FROM A TENTH TO A QUARTER OF AN INCH. EAST TO SOUTHEAST WINDS OF 15 TO 25 MPH ARE ALSO EXPECTED THROUGH THE AFTERNOON. A WINTER STORM WARNING MEANS SIGNIFICANT AMOUNTS OF SNOW... SLEET...AND ICE ARE EXPECTED OR OCCURRING. STRONG WINDS ARE ALSO POSSIBLE. THIS WILL MAKE TRAVEL VERY HAZARDOUS OR IMPOSSIBLE. $$ SDZ050-052-057-058-063-064-011800- /O.CON.KFSD.SN.Y.0007.071201T1200Z-071202T0000Z/ GREGORY-JERAULD-BRULE-AURORA-CHARLES MIX-DOUGLAS- INCLUDING THE CITIES OF...GREGORY...BURKE...WESSINGTON SPRINGS... ALPENA...CHAMBERLAIN...KIMBALL...PLANKINTON...WHITE LAKE... STICKNEY...WAGNER...PLATTE...LAKE ANDES...MARTY...ARMOUR... CORSICA...DELMONT 400 AM CST SAT DEC 1 2007 ...SNOW ADVISORY REMAINS IN EFFECT UNTIL 6 PM CST THIS AFTERNOON... A SNOW ADVISORY REMAINS IN EFFECT UNTIL 6 PM CST THIS AFTERNOON. SNOW WILL RAPIDLY DEVELOP EARLY THIS MORNING...AND MAY MIX WITH FREEZING RAIN AND SLEET BY MID MORNING...ESPECIALLY SOUTH OF A GREGORY TO LAKE ANDES LINE. THE HEAVIEST PRECIPITATION SHOULD MOVE EAST BY LATE AFTERNOON...LEAVING BEHIND 3 TO 6 INCHES OF SNOW AND SLEET...AND LESS THAN TENTH OF AN INCH OF ICE. A SNOW ADVISORY MEANS THAT PERIODS OF SNOW WILL CAUSE PRIMARILY TRAVEL DIFFICULTIES. BE PREPARED FOR SNOW COVERED ROADS AND LIMITED VISIBILITIES...AND USE CAUTION WHILE DRIVING. $$ LIEBL
000 WWUS43 KFSD 011646 WSWFSD URGENT - WINTER WEATHER MESSAGE NATIONAL WEATHER SERVICE SIOUX FALLS SD 1046 AM CST SAT DEC 1 2007 ...MAJOR WINTER STORM FOR THE NORTHERN AND CENTRAL PLAINS TODAY... .A LOW PRESSURE SYSTEM WILL EXIT COLORADO THIS MORNING AND MOVE ACROSS NEBRASKA DURING THE AFTERNOON...PRODUCING A WIDESPREAD AREA OF WINTRY PRECIPITATION...INCLUDING HEAVY SNOW...SLEET AND FREEZING RAIN. THIS WILL MAKE TRAVEL EXTREMELY DIFFICULT IF NOT IMPOSSIBLE OVER MUCH OF THE REGION. PRECIPITATION WILL TAPER OFF THIS EVENING AS LOW PRESSURE QUICKLY MOVES EAST ACROSS IOWA. PRECIPITATION WILL END BY SUNDAY MORNING AS LOW PRESSURE MOVES INTO THE GREAT LAKES REGION. HOWEVER...NORTHWEST WINDS OF 15 TO 30 MPH WILL PRODUCE AREAS OF BLOWING AND DRIFTING SNOW...ESPECIALLY WHERE PRECIPITATION HAS FALLEN AS ALL SNOW AND WAS NOT MIXED WITH SLEET OR FREEZING RAIN. SDZ038-053-059-020000- /O.CAN.KFSD.WS.W.0004.000000T0000Z-071202T0300Z/ /O.EXA.KFSD.SN.Y.0007.000000T0000Z-071202T0000Z/ BEADLE-SANBORN-DAVISON- INCLUDING THE CITIES OF...HURON...WOONSOCKET...MITCHELL 1046 AM CST SAT DEC 1 2007 ...SNOW ADVISORY IN EFFECT UNTIL 6 PM CST THIS AFTERNOON... ...WINTER STORM WARNING IS CANCELLED... THE NATIONAL WEATHER SERVICE IN SIOUX FALLS HAS ISSUED A SNOW ADVISORY...WHICH IS IN EFFECT UNTIL 6 PM CST THIS AFTERNOON. THE WINTER STORM WARNING HAS BEEN CANCELLED. SNOW WILL CONTINUE THROUGH THE AFTERNOON...POSSIBLY MIXED WITH SLEET AT TIMES NEAR INTERSTATE 90. THE HEAVIEST PRECIPITATION SHOULD TAPER OFF THROUGH THE EARLY EVENING...LEAVING BEHIND 2 TO 5 INCHES OF SNOW AND MINOR ACCUMULATIONS OF SLEET. A SNOW ADVISORY MEANS THAT PERIODS OF SNOW WILL CAUSE PRIMARILY TRAVEL DIFFICULTIES. BE PREPARED FOR SNOW COVERED ROADS AND LIMITED VISIBILITIES...AND USE CAUTION WHILE DRIVING. $$ IAZ020>022-SDZ071-020100- /O.EXT.KFSD.WS.W.0004.000000T0000Z-071202T0300Z/ PLYMOUTH-CHEROKEE-BUENA VISTA-UNION- INCLUDING THE CITIES OF...LE MARS...CHEROKEE...STORM LAKE... NORTH SIOUX CITY...BERESFORD...ELK POINT...ALCESTER...JEFFERSON 1046 AM CST SAT DEC 1 2007 ...WINTER STORM WARNING NOW IN EFFECT UNTIL 9 PM CST THIS EVENING... THE WINTER STORM WARNING IS NOW IN EFFECT UNTIL 9 PM CST THIS EVENING. SLEET AND FREEZING RAIN ARE EXPECTED TO BE THE DOMINANT PRECIPITATION TYPES THROUGH THE AFTERNOON...THOUGH AREAS NEAR STORM LAKE MAY BECOME WARM ENOUGH FOR JUST RAIN BY MID AFTERNOON AS TEMPERATURES CLIMB INTO THE MID 30S. COLD AIR WILL BEGIN TO FILTER BACK IN TONIGHT...WITH LIGHT SNOW OR FREEZING DRIZZLE BECOMING THE MORE LIKELY PRECIPITATION TYPE BY LATE EVENING. SNOW AND SLEET TOTALS ARE EXPECTED TO RANGE FROM 1 TO 3 INCHES WITH FREEZING RAIN ACCUMULATIONS OF BETWEEN A QUARTER AND A HALF INCH. A WINTER STORM WARNING MEANS SIGNIFICANT AMOUNTS OF SNOW... SLEET...AND ICE ARE EXPECTED OR OCCURRING. STRONG WINDS ARE ALSO POSSIBLE. THIS WILL MAKE TRAVEL VERY HAZARDOUS OR IMPOSSIBLE. $$ IAZ031-032-NEZ013-014-SDZ068>070-020000- /O.CON.KFSD.WS.W.0004.000000T0000Z-071202T0000Z/ WOODBURY-IDA-DIXON-DAKOTA-BON HOMME-YANKTON-CLAY- INCLUDING THE CITIES OF...SIOUX CITY...IDA GROVE...HOLSTEIN... BATTLE CREEK...WAKEFIELD...PONCA...ALLEN...SOUTH SIOUX CITY... TYNDALL...SCOTLAND...SPRINGFIELD...AVON...TABOR...YANKTON... VERMILLION 1046 AM CST SAT DEC 1 2007 ...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 6 PM CST THIS AFTERNOON... A WINTER STORM WARNING REMAINS IN EFFECT UNTIL 6 PM CST THIS AFTERNOON. SLEET OR FREEZING RAIN ARE EXPECTED TO BE THE DOMINANT PRECIPITATION TYPES THROUGH THE AFTERNOON...THOUGH AREAS NEAR SIOUX CITY MAY BECOME WARM ENOUGH FOR JUST RAIN AS TEMPERATURES CLIMB INTO THE MID 30S. COLD AIR WILL BEGIN TO FILTER BACK IN TONIGHT...WITH LIGHT SNOW OR FREEZING DRIZZLE BECOMING THE MORE LIKELY PRECIPITATION TYPE BY LATE EVENING. AMOUNTS ARE EXPECTED TO BE MUCH LIGHTER. FREEZING RAIN ACCUMULATIONS BETWEEN A QUARTER AND A HALF INCH ARE EXPECTED...WITH UP TO 2 INCHES OF SNOW AND SLEET ALSO POSSIBLE. A WINTER STORM WARNING MEANS SIGNIFICANT AMOUNTS OF SNOW... SLEET...AND ICE ARE EXPECTED OR OCCURRING. STRONG WINDS ARE ALSO POSSIBLE. THIS WILL MAKE TRAVEL VERY HAZARDOUS OR IMPOSSIBLE. $$ IAZ001>003-012>014-MNZ089-090-098-SDZ060>062-065>067-020100- /O.CON.KFSD.WS.W.0004.000000T0000Z-071202T0300Z/ LYON-OSCEOLA-DICKINSON-SIOUX-OBRIEN-CLAY-NOBLES-JACKSON-ROCK- HANSON-MCCOOK-MINNEHAHA-HUTCHINSON-TURNER-LINCOLN- INCLUDING THE CITIES OF...ROCK RAPIDS...GEORGE...INWOOD... LARCHWOOD...SIBLEY...SPIRIT LAKE...MILFORD...ARNOLDS PARK... ORANGE CITY...SIOUX CENTER...SHELDON...HARTLEY...SANBORN... SPENCER...WORTHINGTON...JACKSON...LAKEFIELD...LUVERNE... ALEXANDRIA...EMERY...SALEM...CANISTOTA...BRIDGEWATER...MONTROSE... SIOUX FALLS...PARKSTON...FREEMAN...MENNO...TRIPP...PARKER... CENTERVILLE...MARION...VIBORG...HURLEY...CHANCELLOR...CANTON... LENNOX...TEA...HARRISBURG 1046 AM CST SAT DEC 1 2007 ...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 9 PM CST THIS EVENING... A WINTER STORM WARNING REMAINS IN EFFECT UNTIL 9 PM CST THIS EVENING. SNOW AND SLEET WILL BE THE DOMINANT PRECIPITATION TYPES THROUGH THE INTERSTATE 90 CORRIDOR THROUGH THE AFTERNOON...WITH EMBEDDED FREEZING RAIN BECOMING MORE LIKELY FARTHER SOUTH TOWARD CANTON SOUTH DAKOTA AND SPENCER IOWA AS THE AFTERNOON PROGRESSES. ANY MIXED PRECIPITATION WILL CHANGE BACK TO SNOW DURING THE EARLY EVENING...AS COLDER AIR MOVES BACK INTO THE AREA. SNOW AND SLEET TOTALS SHOULD BE FROM ABOUT 3 TO 7 INCHES...WITH HIGHEST AMOUNTS NEAR AND NORTH OF INTERSTATE 90. ICE ACCUMULATIONS NEAR INTERSTATE 90 SHOULD REMAIN LESS THAN A TENTH OF AN INCH...WITH A QUARTER TO A HALF INCH OF ICE POSSIBLE SOUTH OF HIGHWAY 18. A WINTER STORM WARNING MEANS SIGNIFICANT AMOUNTS OF SNOW... SLEET...AND ICE ARE EXPECTED OR OCCURRING. STRONG WINDS ARE ALSO POSSIBLE. THIS WILL MAKE TRAVEL VERY HAZARDOUS OR IMPOSSIBLE. $$ MNZ071-072-080-081-097-SDZ039-040-054>056-020100- /O.CON.KFSD.WS.W.0004.000000T0000Z-071202T0600Z/ LINCOLN-LYON-MURRAY-COTTONWOOD-PIPESTONE-KINGSBURY-BROOKINGS- MINER-LAKE-MOODY- INCLUDING THE CITIES OF...TYLER...HENDRICKS...LAKE BENTON... IVANHOE...MARSHALL...SLAYTON...FULDA...WINDOM...MOUNTAIN LAKE... PIPESTONE...DE SMET...ARLINGTON...LAKE PRESTON...BROOKINGS... HOWARD...MADISON...FLANDREAU 1046 AM CST SAT DEC 1 2007 ...WINTER STORM WARNING REMAINS IN EFFECT UNTIL MIDNIGHT CST TONIGHT... A WINTER STORM WARNING REMAINS IN EFFECT UNTIL MIDNIGHT CST TONIGHT. MODERATE TO HEAVY SNOW WILL CONTINUE THROUGH THE AFTERNOON. THE SNOW WILL MIX WITH SLEET AT TIMES THIS AFTERNOON SOUTH OF HIGHWAY 34 IN SOUTH DAKOTA...AND HIGHWAY 30 IN MINNESOTA...WITH A BRIEF PERIOD OF FREEZING RAIN ALSO POSSIBLE IN THESE AREAS. THE HEAVIEST SNOW SHOULD END BY LATE THIS EVENING. TOTAL SNOW AND SLEET ACCUMULATION OF 6 TO 11 INCHES IS EXPECTED...WITH THE HIGHEST AMOUNTS THROUGH THE HIGHWAY 14 CORRIDOR. ANY ICE ACCUMULATION WILL BE LESS THAN ONE TENTH OF AN INCH. EAST TO SOUTHEAST WINDS OF 20 TO 30 MPH ARE ALSO EXPECTED THROUGH THE AFTERNOON...PRODUCING AREAS BLOWING AND DRIFTING SNOW. A WINTER STORM WARNING MEANS SIGNIFICANT AMOUNTS OF SNOW... SLEET...AND ICE ARE EXPECTED OR OCCURRING. STRONG WINDS ARE ALSO POSSIBLE. THIS WILL MAKE TRAVEL VERY HAZARDOUS OR IMPOSSIBLE. $$ SDZ050-052-057-058-063-064-020000- /O.CON.KFSD.SN.Y.0007.000000T0000Z-071202T0000Z/ GREGORY-JERAULD-BRULE-AURORA-CHARLES MIX-DOUGLAS- INCLUDING THE CITIES OF...GREGORY...BURKE...WESSINGTON SPRINGS... ALPENA...CHAMBERLAIN...KIMBALL...PLANKINTON...WHITE LAKE... STICKNEY...WAGNER...PLATTE...LAKE ANDES...MARTY...ARMOUR... CORSICA...DELMONT 1046 AM CST SAT DEC 1 2007 ...SNOW ADVISORY REMAINS IN EFFECT UNTIL 6 PM CST THIS AFTERNOON... A SNOW ADVISORY REMAINS IN EFFECT UNTIL 6 PM CST THIS AFTERNOON. SNOW WILL CONTINUE THROUGH THE AFTERNOON WEST OF THE JAMES RIVER... RAPIDLY DEVELOP EARLY THIS MORNING...AND MAY MIX WITH FREEZING RAIN AND SLEET BY MID MORNING...ESPECIALLY SOUTH OF A GREGORY TO PLATTE LINE. THE HEAVIEST PRECIPITATION SHOULD MOVE EAST BY LATE AFTERNOON... LEAVING BEHIND 2 TO 5 INCHES OF SNOW AND SLEET...AND LESS THAN TENTH OF AN INCH OF ICE. A SNOW ADVISORY MEANS THAT PERIODS OF SNOW WILL CAUSE PRIMARILY TRAVEL DIFFICULTIES. BE PREPARED FOR SNOW COVERED ROADS AND LIMITED VISIBILITIES...AND USE CAUTION WHILE DRIVING. $$ JH
000 WWUS43 KFSD 012116 WSWFSD URGENT - WINTER WEATHER MESSAGE NATIONAL WEATHER SERVICE SIOUX FALLS SD 316 PM CST SAT DEC 1 2007 .LOW PRESSURE WILL EXIT THE AREA LATE THIS AFTERNOON AND EARLY THIS EVENING. MOST OF THE HEAVIEST PRECIPITATION IS ALREADY EAST OF THE AREA...WITH A FINAL HEAVY BAND OF SNOW EXPECTED TO SKIRT THROUGH EAST CENTRAL SOUTH DAKOTA AND SOUTHWEST MINNESOTA BY ABOUT 700 PM CST. IAZ031-032-NEZ013-014-SDZ068>070-012230- /O.CAN.KFSD.WS.W.0004.000000T0000Z-071202T0000Z/ WOODBURY-IDA-DIXON-DAKOTA-BON HOMME-YANKTON-CLAY- INCLUDING THE CITIES OF...SIOUX CITY...IDA GROVE...HOLSTEIN... BATTLE CREEK...WAKEFIELD...PONCA...ALLEN...SOUTH SIOUX CITY... TYNDALL...SCOTLAND...SPRINGFIELD...AVON...TABOR...YANKTON... VERMILLION 316 PM CST SAT DEC 1 2007 ...WINTER STORM WARNING IS CANCELLED... THE NATIONAL WEATHER SERVICE IN SIOUX FALLS HAS CANCELLED THE WINTER STORM WARNING. PATCHY LIGHT RAIN...FREEZING RAIN AND FREEZING DRIZZLE WILL BE POSSIBLE THROUGH MID EVENING...BUT ADDITIONAL ACCUMULATIONS ARE EXPECTED TO REMAIN LIGHT. $$ IAZ001>003-012>014-020>022-MNZ089-090-098-SDZ060>062-065>067-071- 012230- /O.CAN.KFSD.WS.W.0004.000000T0000Z-071202T0300Z/ LYON-OSCEOLA-DICKINSON-SIOUX-OBRIEN-CLAY-PLYMOUTH-CHEROKEE- BUENA VISTA-NOBLES-JACKSON-ROCK-HANSON-MCCOOK-MINNEHAHA- HUTCHINSON-TURNER-LINCOLN-UNION- INCLUDING THE CITIES OF...ROCK RAPIDS...GEORGE...INWOOD... LARCHWOOD...SIBLEY...SPIRIT LAKE...MILFORD...ARNOLDS PARK... ORANGE CITY...SIOUX CENTER...SHELDON...HARTLEY...SANBORN... SPENCER...LE MARS...CHEROKEE...STORM LAKE...WORTHINGTON... JACKSON...LAKEFIELD...LUVERNE...ALEXANDRIA...EMERY...SALEM... CANISTOTA...BRIDGEWATER...MONTROSE...SIOUX FALLS...PARKSTON... FREEMAN...MENNO...TRIPP...PARKER...CENTERVILLE...MARION... VIBORG...HURLEY...CHANCELLOR...CANTON...LENNOX...TEA... HARRISBURG...NORTH SIOUX CITY...BERESFORD...ELK POINT... ALCESTER...JEFFERSON 316 PM CST SAT DEC 1 2007 ...WINTER STORM WARNING IS CANCELLED... THE NATIONAL WEATHER SERVICE IN SIOUX FALLS HAS CANCELLED THE WINTER STORM WARNING. A BAND OF SNOW WILL MOVE THROUGH THE AREA LATE THIS AFTERNOON WITH SNOWFALL INTENSITY DECREASING QUICKLY THIS EVENING. ADDITIONAL SNOWFALL AMOUNTS THROUGH 900 PM CST ARE EXPECTED TO BE AN INCH OR LESS. $$ SDZ038-050-052-053-057>059-063-064-012230- /O.CAN.KFSD.SN.Y.0007.000000T0000Z-071202T0000Z/ BEADLE-GREGORY-JERAULD-SANBORN-BRULE-AURORA-DAVISON-CHARLES MIX- DOUGLAS- INCLUDING THE CITIES OF...HURON...GREGORY...BURKE... WESSINGTON SPRINGS...ALPENA...WOONSOCKET...CHAMBERLAIN... KIMBALL...PLANKINTON...WHITE LAKE...STICKNEY...MITCHELL... WAGNER...PLATTE...LAKE ANDES...MARTY...ARMOUR...CORSICA...DELMONT 316 PM CST SAT DEC 1 2007 ...SNOW ADVISORY IS CANCELLED... THE NATIONAL WEATHER SERVICE IN SIOUX FALLS HAS CANCELLED THE SNOW ADVISORY. A BAND OF SNOW WILL MOVE OUT OF THE JAMES VALLEY LATE THIS AFTERNOON...WITH ADDITIONAL SNOWFALL AMOUNTS THROUGH THE EVENING EXPECTED TO BE AN INCH OR LESS. $$ MNZ071-072-080-081-097-SDZ039-040-054>056-020530- /O.CON.KFSD.WS.W.0004.000000T0000Z-071202T0600Z/ LINCOLN-LYON-MURRAY-COTTONWOOD-PIPESTONE-KINGSBURY-BROOKINGS- MINER-LAKE-MOODY- INCLUDING THE CITIES OF...TYLER...HENDRICKS...LAKE BENTON... IVANHOE...MARSHALL...SLAYTON...FULDA...WINDOM...MOUNTAIN LAKE... PIPESTONE...DE SMET...ARLINGTON...LAKE PRESTON...BROOKINGS... HOWARD...MADISON...FLANDREAU 316 PM CST SAT DEC 1 2007 ...WINTER STORM WARNING REMAINS IN EFFECT UNTIL MIDNIGHT CST TONIGHT... A WINTER STORM WARNING REMAINS IN EFFECT UNTIL MIDNIGHT CST TONIGHT. A BAND OF HEAVY SNOW WILL MOVE THROUGH THE AREA LATE THIS AFTERNOON...WITH SOME LOCATIONS POSSIBLY RECEIVING AN ADDITIONAL 1 TO 3 INCHES OF SNOWFALL. THIS SHOULD BRING STORM TOTAL SNOWFALL INTO THE 5 TO 8 INCH RANGE. A WINTER STORM WARNING MEANS SIGNIFICANT AMOUNTS OF SNOW... SLEET...AND ICE ARE EXPECTED OR OCCURRING. STRONG WINDS ARE ALSO POSSIBLE. THIS WILL MAKE TRAVEL VERY HAZARDOUS OR IMPOSSIBLE. $$ 08
What forecasters said that day
The local office's own words before this snow advisory went out, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.
NWS Sioux Falls, SD wrote its last area forecast discussion before this snow advisory went out at Nov 30, 3:40 PM CST, 14 minutes earlier.
Area forecast discussion, Nov 30, 3:40 PM CST, 14 minutes before
AREA FORECAST DISCUSSION FOR SOUTHEAST SD/SOUTHWEST MN/NORTHWEST IA
NATIONAL WEATHER SERVICE SIOUX FALLS SD
340 PM CST FRI NOV 30 2007
.DISCUSSION...
TEMPERATURES REALLY STRUGGLING TO WARM TODAY OVER FRESH SNOWCOVER IN
SOUTHWESTERN MINNESOTA AND FAR NORTHERN IOWA. WITH HIGH PRESSURE
MOVING INTO CENTRAL IOWA THIS EVENING...EXPECT FAIRLY LIGHT WINDS
AND MOSTLY CLEAR SKIES TO ALLOW TEMPERATURES TO PLUMMET ACROSS THE
EASTERN CWA. HAVE COOLEST TEMPERATURES OVER REMAINING SNOW COVER.
WARM AIR ADVECTION REALLY INCREASES BETWEEN 3-6Z AS GRADIENT
INCREASES IN RESPONSE TO DEVELOPING SURFACE LOW OVER EASTERN
COLORADO. AS CLOUDS ROLL IN AND WINDS INCREASE...EXPECT TEMPERATURES
TO RESPOND AND RISE OVERNIGHT. ATMOSPHERIC PROFILES REMAIN EXTREMELY
DRY IN THE LOW LEVELS THROUGHOUT THE NIGHT...BUT RAPIDLY SATURATE
FROM ALOFT TOWARDS 12Z. WITH ENTIRE ATMOSPHERIC COLUMN REMAINING
BELOW 0 C...HAVE KEPT PRECIP TYPE AS SNOW...BUT HAVE KEPT MENTION OF
PRECIP MAINLY SOUTH OF A CHAMBERLAIN SD TO STORM LAKE IOWA LINE
AFTER 09Z SATURDAY.
PRETTY MUCH STATUS QUO ON THE FCST FOR THE EXPCD WINTER STORM FOR
SAT. MASSIVE ISENTROPIC LIFT MOVG NEWD OVR CWA SAT WILL LIKELY TAP
INTO LWR LVL MOISTURE ADVECTION WITH SLY LOW LVL JET INTO CNTRL
PLAINS. MODELS TREND IS FURTHER NORTH ON PRECIP TYPE TRANSITION
ZONE. WILL START AS GOOD SNOW SPRDG NEWD OVR CWA SAT MRNG WITH
INITIAL COLD MID LVLS...BUT TRANSITION TO ZR/IP ALG AND SOUTH OF I90
DURG AFTN AS TEMPS WARM ABV FRZG FM ARND 800 TO 700 MB. QUESTION IS
EXTENT OF THIS WARMING AND HOW CLOSE IT GETS TO SFC. INITIALLY VERY
COLD AND DRY AIR MASS INTO EARLY SAT MAY HELP EVAP COOLING...AND
PSBLTY OF DYNAMIC COOLING WITH INSTABILITY ALOFT...SO MODELS MAY BE
SOMEWHAT OPTIMISTIC WITH WARMING. APPEARS TO STAY MOSTLY HEAVY SNOW
IN NRN CWA...AND GO MOSTLY ZR TO MIX SOUTH...WITH HEAVIEST QPF IN
MAIN MOISTURE INFLUX AND CONVERGENCE EAST OF JAMES VALLEY...SO WENT
WITH WINTER STORM WARNING EAST OF JAMES...AND ADVY WEST. DRY
SLOTTING SHOULD TAPER OFF PRECIP FM SW TO NE IN CWA SAT NGT...PSBLY
FASTER THAN CURRENT FCST...BUT COULD GO TO ZL- OR ZR-- SO COULD
STILL BE ISSUES. STG NNWLY WINDS WILL USHER BACK COLD AIR FM CANADA
SAT NGT THRU SUN...AND GUIDANCE...ESP ETA...APPEARS TOO WARM.
LOOKING INTO NEXT WEEK...THERE WILL BE A GRADUAL WARM UP ALOFT. THE
SURFACE RIDGE SUNDAY NIGHT WILL ALLOW TEMPS TO FALL INTO THE SINGLE
DIGITS ABOVE ZERO WITH SOME SHELTERED AREAS APPORACHING ZERO. THE
HIGH WILL MOVE TO THE EAST ON MONDAY AND ALLOW WARM AIR TO SLOWLY
MOVE IN. HOWEVER...FOR MONDAY...WINDS WILL INITIALLY SOUTHEAST AND
WITH FRESH SNOW COVER THIS WILL KEEP TEMPS IN THE 20S OVER ALL BUT
SOUTH CENTRAL SD WHERE TEMPS COULD REACH FREEZING. SOUTHEAST WINDS
WILL REMAIN STRONG ON TUESDAY AND IT LOOKS LIKE THE SURFACE WAVE
WILL MOVE NORTH OF THE CWA. THIS WILL LET THE SURFACE WARM FRONT
MOVE TOWARD I-29. TO THE WEST.. HIGHS WILL RISE INTO THE MID TO
UPPER 30S WHILE ON THE COLD SIDE...A WEAK FRONTAL CIRCULATION WILL
RESULT IN CLOUDS AND A CHANCE OF LIGHT SNOW IN SOUTHWEST MINNESOTA.
THIS CHANCE OF SNOW WILL CONTINUE INTO TUESDAY EVENING. A COLD FRONT
WILL MOVE SOUTH ACROSS THE AREA TUESDAY NIGHT AND WEDNESDAY. AHEAD
OF THE FRONT TEMPS WILL REMAIN FAIRLY MILD WITH LOWS LIKELY IN THE
20S. HOWEVER...ONCE THE FRONT PASSES...IT WILL COOL OFF AND DRY
MARKEDLY. IN FACT...THE SOUTHERN CWA WILL LIKELY SEE A MORNING HIGH
AND FALLING TEMPS THE REMAINDER OF THE DAY. THERE COULD BE A FEW
FLURRIES POST FRONTAL BUT THE CHANCE OF ANY MEASURABLE SNOW IS SO
SMALL THAT LEFT IT DRY.
AFTER WEDNESDAY...PREDICTABILITY DECREASES AS THE ECMWF AND GFS HAS
SHOWN LARGE RUN-TO-RUN DIFFERENCES. THERE IS SOME HINT OF SNOW
APPROACHING THE AREA TOWARD THE END OF THE WEEK OR EARLY NEXT
WEEKEND. HOWEVER...WITH LOW CONFIDENCE WILL KEEP THE FORECAST DRY
WITH TEMPS NEAR FREEZING SOUTH CNETRAL AND IN THE 20S ELSEWHERE.
&&
.AVIATION...
VFR THROUGH THE TAF FORECAST PERIOD. INCREASING HIGH CLOUDS THROUGH
THE MORNING AND AFTERNOON...THEN MID CLOUD THROUGH THE EVENING
HOURS. CLOUD BASES WILL DROP RAPIDLY BY SUNRISE SAT MORNING AS LOW
PRESSURE APPROACHES THE AREA. WIDESPREAD IFR TO LIFR SAT MORNING
INTO SUN...LARGELY DUE TO SNOW...ALTHOUGH FREEZING RAIN IS LIKELY
INTO NW IOWA.
.FSD WATCHES/WARNINGS/ADVISORIES...
IA...WINTER STORM WARNING FROM 6 AM TO 9 PM CST SATURDAY FOR
IAZ001>003-012>014.
WINTER STORM WARNING FROM 6 AM TO 6 PM CST SATURDAY FOR
IAZ020>022-031-032.
MN...WINTER STORM WARNING FROM 6 AM TO 9 PM CST SATURDAY FOR MNZ089-
090-098.
WINTER STORM WARNING FROM 9 AM SATURDAY TO MIDNIGHT CST SATURDAY
NIGHT FOR MNZ071-072-080-081-097.
NE...WINTER STORM WARNING FROM 6 AM TO 6 PM CST SATURDAY FOR NEZ013-
014.
SD...WINTER STORM WARNING FROM 6 AM TO 9 PM CST SATURDAY FOR
SDZ060>062-065>067.
WINTER STORM WARNING FROM 6 AM TO 6 PM CST SATURDAY FOR
SDZ068>071.
SNOW ADVISORY FROM 6 AM TO 6 PM CST SATURDAY FOR SDZ050-052-057-
058-063-064.
WINTER STORM WARNING FROM 9 AM SATURDAY TO MIDNIGHT CST SATURDAY
NIGHT FOR SDZ039-040-054>056.
SNOW ADVISORY FROM 9 AM TO 9 PM CST SATURDAY FOR SDZ038-053-059.
&&
TEMEYER/RYRHOLM/SCHUMACHERHazardous weather outlook, Nov 30, 5:23 AM CST, 10 hours 31 minutes before
HAZARDOUS WEATHER OUTLOOK NATIONAL WEATHER SERVICE SIOUX FALLS SD 0523 AM CST FRI NOV 30 2007 SDZ038>040-050-052>071-MNZ071-072-080-081-089-090-097-098- IAZ001>003-012>014-020>022-031-032-NEZ013-014-011200- AURORA-BEADLE-BON HOMME-BROOKINGS-BRULE-BUENA VISTA IA- CHARLES MIX-CHEROKEE IA-CLAY-CLAY IA-COTTONWOOD MN-DAKOTA NE- DAVISON-DICKINSON IA-DIXON NE-DOUGLAS-GREGORY-HANSON-HUTCHINSON- IDA IA-JACKSON MN-JERAULD-KINGSBURY-LAKE-LINCOLN-LINCOLN MN- LYON IA-LYON MN-MCCOOK-MINER-MINNEHAHA-MOODY-MURRAY MN-NOBLES MN- OBRIEN IA-OSCEOLA IA-PIPESTONE MN-PLYMOUTH IA-ROCK MN-SANBORN- SIOUX IA-TURNER-UNION-WOODBURY IA-YANKTON- 0523 AM CST FRI NOV 30 2007 THIS HAZARDOUS WEATHER OUTLOOK IS FOR SOUTHEAST SOUTH DAKOTA... SOUTHWEST MINNESOTA...NORTHWEST IOWA...AND NORTHEAST NEBRASKA. .DAY ONE...TODAY AND TONIGHT WINTER WEATHER... IN ADVANCE OF A STRONG STORM SYSTEM...SNOW COULD FALL LATE TONIGHT IN THE MISSOURI RIVER VALLEY...POSSIBLY PRODUCING UP TO AN INCH OF ACCUMULATIONS. .DAYS TWO THROUGH SEVEN...SATURDAY THROUGH THURSDAY A VIGOROUS LOW PRESSURE SYSTEM WILL DEVELOP IN THE CENTRAL ROCKIES FRIDAY NIGHT...THEN MOVE OUT INTO THE CENTRAL PLAINS ON SATURDAY...MOVING EAST TOWARD THE WESTERN GREAT LAKES BY EARLY SUNDAY. THE TRACK OF THE SURFACE LOW IS A CHALLENGE...AND THE TEMPERATURE GRADIENT JUST ABOVE THE SURFACE IS VERY SHARP. WARM AIR ABOVE FREEZING IS MOVING NORTHWARD INTO THE AREA BY LATE SATURDAY MORNING OVER A COLD SURFACE...WHICH COULD CHANGE THE SNOWFALL OVER TO A WINTERY MIX ALONG AND SOUTHEAST OF A LAKE ANDES SOUTH DAKOTA TO WINDOM MINNESOTA LINE. ICE ACCUMULATIONS COULD BE SIGNIFICANT IN A BAND FROM YANKTON SOUTH DAKOTA...EASTWARD TO SPENCER IOWA...AND WORTHINGTON AND JACKSON MINNESOTA. IN THESE AREAS...TWO TO THREE TENTHS OF AN INCH OF ICE COULD QUICKLY ACCUMULATE SATURDAY AFTERNOON ALONG WITH SOME INTERMITTENT SNOWFALL. IT IS POSSIBLE THAT AREAS FROM EXTREME NORTHEAST NEBRASKA...TO SIOUX CITY...TO STORM LAKE IOWA COULD WARM UP SATURDAY AFTERNOON TO AT OR ABOVE FREEZING. THIS WOULD HELP TO MELT ANY ICE ACCUMULATIONS IN THOSE AREAS. TO THE NORTH...SNOW IS CERTAINLY A THREAT...WITH A WIDESPREAD 6 TO 10 INCHES POSSIBLE ALONG AND NORTH OF INTERSTATE 90. WINDS WILL ALSO BE RATHER BRISK...AVERAGING 15 TO 30 MPH SATURDAY AND SATURDAY NIGHT. .SPOTTER INFORMATION STATEMENT... SPOTTER ACTIVATION WILL NOT BE NEEDED TODAY AND TONIGHT. && FOR MORE INFORMATION PLEASE VISIT OUR WEBSITE AT WWW.CRH.NOAA.GOV/FSD. THIS INCLUDES THE GRAPHICAL HAZARDOUS WEATHER OUTLOOK.
The office that day
Everything else NWS Sioux Falls, SD issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Nov 30, 3:54 PM CST | Winter Storm Warning | FSD | Beadle, Bon Homme, Brookings, Clay, Davison, Hanson and 12 more | 28 hr |
Nearby
Snow Advisories in South Dakota, 2007Every snow advisory in 2007
Sources
The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.